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Showing posts with label seasons. Show all posts
Showing posts with label seasons. Show all posts

A Winter Walk



Henry David Thoreau advised in his journal that we should “Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.”

I am a fan of winter walks and I especially like going out after a snowfall. The woods are whitewashed clean, and the snow muffles sounds. I like to follow the tracks of animals who have walked there before me that day.

Adam Gopnik's book Winter: Five Windows on the Season  is a meditation on the season via artists, poets, composers, writers, explorers, scientists, and thinkers, who have created our modern idea of winter. It goes to unlikely places, such as thinking about how snow science leads to existential questions of God and our place in the world.

Do I love the winter season? No, it is my least favorite season. (Autumn is my favorite.) I often say that i want to retire to a place without winter, or at least with a much milder winter than my New Jersey ones. But I suspect i would miss winter after a time.

The Brain Pickings blog had a post about Thoreau finding inner warmth in this cold season, but here is a section from his journal that isn't about going for a walk in the snowy woods.
The wind has gently murmured through the blinds, or puffed with feathery softness against the windows, and occasionally sighed like a summer zephyr lifting the leaves along, the livelong night. The meadow-mouse has slept in his snug gallery in the sod, the owl has sat in a hollow tree in the depth of the swamp, the rabbit, the squirrel, and the fox have all been housed. The watch-dog has lain quiet on the hearth, and the cattle have stood silent in their stalls. The earth itself has slept, as it were its first, not its last sleep, save when some street-sign or wood-house door has faintly creaked upon its hinge, cheering forlorn nature at her midnight work, — the only sound awake twixt Venus and Mars, — advertising us of a remote inward warmth, a divine cheer and fellowship, where gods are met together, but where it is very bleak for men to stand. But while the earth has slumbered, all the air has been alive with feathery flakes descending, as if some northern Ceres reigned, showering her silvery grain over all the fields.
I identify with Thoreau's suggestion to walk in winter, but I also identify with curling up under a blanket inside and just observing the winter outside.

Here is Hank expanding on that winter walk:
There is nothing so sanative, so poetic, as a walk in the woods and fields even now, when I meet none abroad for pleasure. In the street and in society I am almost invariably cheap and dissipated, my life is unspeakably mean. No amount of gold or respectability would in the least redeem it, — dining with the Governor or a member of Congress!! But alone in distant woods or fields, I come to myself, I once more feel myself grandly related, and that cold and solitude are friends of mine. I suppose that this value, in my case, is equivalent to what others get by churchgoing and prayer. I thus dispose of the superfluous and see things as they are, grand and beautiful.

Poets have had much to say about winter. Mr. Shakespeare wrote:

Blow, blow, thou winter wind,
   Thou art not so unkind
      As man’s ingratitude;
   Thy tooth is not so keen,
Because thou art not seen,
      Although thy breath be rude. 

I feel more akin to the "Winter Trees" of William Carlos Williams.

All the complicated details
of the attiring and
the disattiring are completed!
A liquid moon
moves gently among
the long branches.
Thus having prepared their buds
against a sure winter
the wise trees
stand sleeping in the cold.

I'm trying to keep my own buds safe from the season and sleepily waiting for spring.





Your Winter Brain


Is there seasonality in our brain responses? Is your winter brain any different from your summer brain?


At least one study suggests that our brain function goes through seasonal cycles. Seasons just might have an effect on cognitive brain function.

The volunteers spent four and a half days in a laboratory “devoid of seasonal cues.” Then they did brain scans as they performed cognitive tasks, one measuring sustained attention, and another executive function. The researchers were looking to see if the season in which the fMRI scan took place was correlated with brain activity during the tasks.

There were some significant correlations and across several brain areas neural activity followed a seasonal cycle.

I'm sure that you "feel" different in different seasons, but do you notice any difference if you cognitive performance?

I had a professor years ago that said that no great research comes from places where it is always summer. He was half, but only half, joking.

The study's abstract:
Daily variations in the environment have shaped life on Earth, with circadian cycles identified in most living organisms. Likewise, seasons correspond to annual environmental fluctuations to which organisms have adapted. However, little is known about seasonal variations in human brain physiology. We investigated annual rhythms of brain activity in a cross-sectional study of healthy young participants. They were maintained in an environment free of seasonal cues for 4.5 d, after which brain responses were assessed using functional magnetic resonance imaging (fMRI) while they performed two different cognitive tasks. Brain responses to both tasks varied significantly across seasons, but the phase of these annual rhythms was strikingly different, speaking for a complex impact of season on human brain function. For the sustained attention task, the maximum and minimum responses were located around summer and winter solstices, respectively, whereas for the working memory task, maximum and minimum responses were observed around autumn and spring equinoxes. These findings reveal previously unappreciated process-specific seasonality in human cognitive brain function that could contribute to intraindividual cognitive changes at specific times of year and changes in affective control in vulnerable populations. 

I wasn't able to find which season showed the best performance. And the seasons did not hinder the participants’ overall performances. But the surprise was that the brain activity mapping suggests that different areas of the brain activate based on the season.

More research needs to be done, and there are skeptics about these early finding. Up next for the researchers is to understand how biochemical changes and specific seasonal cues, such as temperature, humidity, and the length of the day also have an impact on brain activity.

I think this post would have been better if I hadn't written it during winter.